GHSA-Q3RR-G46F-JGQR

Vulnerability from github – Published: 2025-02-19 21:31 – Updated: 2025-05-21 15:30
VLAI?
Details

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.

Severity ?
7.6 (High)
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-0624"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-19T19:15:15Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.",
  "id": "GHSA-q3rr-g46f-jgqr",
  "modified": "2025-05-21T15:30:32Z",
  "published": "2025-02-19T21:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0624"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250516-0006"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2346112"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-0624"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:7702"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:4422"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3780"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3577"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3573"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3396"
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      "url": "https://access.redhat.com/errata/RHSA-2025:3301"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:3297"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2869"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2867"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2799"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2784"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2675"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2655"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2653"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:2521"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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